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Inventories - Inventories (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Inventory Disclosure [Abstract] |  |
Inventories | $ 420.2 | $ 319.8
Inventory [Line Items] |  |
Inventory, Finished Goods, Net of Reserves | 202.8 | 156.8
Inventory, Supplies, Net of Reserves | 169.3 | 124.1
Inventories | 420.2 | 319.8
Inventories |  |
Inventory [Line Items] |  |
Inventory, Raw Materials, Net of Reserves | 28.0 | 22.1
Inventory Pulp |  |
Inventory [Line Items] |  |
Inventory, Raw Materials, Net of Reserves | $ 20.2 | $ 16.8

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